Pseudobiceros caribbensis Bolaños, Quiroga & Litvaitis, 2007

Fig. 12

Material examined.

Campeche coast, Mexico • 1; Cayos sumergidos del Oeste; 20.4°N, 92.2°W; 13 m; 14 Sep. 2017; A. Hernández leg.; CRPPY -0014 • 1; Cayos sumergidos del Oeste; 20.4°N, 92.2°W; 10.8 m; 14 Sep. 2017; A. Gutiérrez leg.; CRPPY -0019 • 3; Cayo Arcas; 20.2°N, 92.0°W; 4.1 m; 21 Apr. 2018; A. Hernández leg.; CRPPY -0057 • 1; Cayo Arcas; 20.2°N, 92.0°W; 2.2 m; 21 Apr. 2018; A. Hernández leg.; CRPPY -0058 • 1; Cayo Arcas; 20.2°N, 92.0°W; 9.3 m; 24 Apr. 2018; A. Hernández leg.; CRPPY -0075 • 1; Cayo Arcas; 20.2°N, 92.0°W; 4.4 m; 17 Aug. 2018; A. Hernández leg.; CRPPY -0105.

Distribution.

Recorded in Curaçao, Jamaica, Florida, and Honduras (Bolaños et al. 2007); Belize (Rawlinson 2008). This is the first record for the Gulf of Mexico (Campeche coast, Mexico).

Description.

Elongated and elliptical body, 2 cm in length and 1 cm in width, Dorsal background pigmentation caramel-brown with dispersed, darker tonalities. Small white and black spots scattered across entire surface. Median longitudinal thickening traversed with two large white patches, white median line more visible in anterior ½ of body, especially between patches. One patch situated near pharynx in first 1 / 3 of body, and second in posterior region of body (Fig. 12 A, B, D). Ventral surface appears greyish with darker edges and dispersed white spots (Fig. 12 B). Multiple marginal folds. Pseudotentacles complex with multiple folds. Cluster of cerebral eyes horseshoe shaped, situated in a pale rounded area. Ruffled pharynx located in first 1 / 3 of body, with a centred mouth. Two male copulatory openings in middle body region, behind the pharynx, located near female gonopore and sucker (Fig. 12 C). Configuration of reproductive system matches that provided in the original description (Bolaños et al. 2007).